ALbuffer *NewBuffer(ALCcontext *context)
{
ALCdevice *device = context->Device;
ALbuffer *buffer;
ALenum err;
buffer = calloc(1, sizeof(ALbuffer));
if(!buffer)
SET_ERROR_AND_RETURN_VALUE(context, AL_OUT_OF_MEMORY, NULL);
RWLockInit(&buffer->lock);
err = NewThunkEntry(&buffer->id);
if(err == AL_NO_ERROR)
err = InsertUIntMapEntry(&device->BufferMap, buffer->id, buffer);
if(err != AL_NO_ERROR)
{
FreeThunkEntry(buffer->id);
memset(buffer, 0, sizeof(ALbuffer));
free(buffer);
SET_ERROR_AND_RETURN_VALUE(context, err, NULL);
}
return buffer;
}
void InitUIntMap(UIntMap *map, ALsizei limit)
{
map->array = NULL;
map->size = 0;
map->maxsize = 0;
map->limit = limit;
RWLockInit(&map->lock);
}
void InitUIntMap(UIntMap *map, ALsizei limit)
{
map->keys = NULL;
map->values = NULL;
map->size = 0;
map->capacity = 0;
map->limit = limit;
RWLockInit(&map->lock);
}
static void ALsoundfont_Construct(ALsoundfont *self)
{
InitRef(&self->ref, 0);
self->Presets = NULL;
self->NumPresets = 0;
RWLockInit(&self->Lock);
self->id = 0;
}
static void MidiSynth_Construct(MidiSynth *self, ALCdevice *device)
{
InitEvtQueue(&self->EventQueue);
RWLockInit(&self->Lock);
self->Gain = 1.0f;
self->State = AL_INITIAL;
self->LastEvtTime = 0;
self->NextEvtTime = UINT64_MAX;
self->SamplesSinceLast = 0.0;
self->SamplesToNext = 0.0;
self->SamplesPerTick = (ALdouble)device->Frequency / TICKS_PER_SECOND;
}
void MidiSynth_Construct(MidiSynth *self, ALCdevice *device)
{
InitEvtQueue(&self->EventQueue);
RWLockInit(&self->Lock);
self->Soundfonts = NULL;
self->NumSoundfonts = 0;
self->Gain = 1.0f;
self->State = AL_INITIAL;
self->ClockBase = 0;
self->SamplesDone = 0;
self->SampleRate = device->Frequency;
}
AL_API ALvoid AL_APIENTRY alGenBuffers(ALsizei n, ALuint *buffers)
{
ALCdevice *device;
ALCcontext *context;
ALsizei cur = 0;
ALenum err;
context = GetContextRef();
if(!context) return;
if(!(n >= 0))
SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done);
device = context->Device;
for(cur = 0; cur < n; cur++)
{
ALbuffer *buffer = calloc(1, sizeof(ALbuffer));
if(!buffer)
{
alDeleteBuffers(cur, buffers);
SET_ERROR_AND_GOTO(context, AL_OUT_OF_MEMORY, done);
}
RWLockInit(&buffer->lock);
err = NewThunkEntry(&buffer->id);
if(err == AL_NO_ERROR)
err = InsertUIntMapEntry(&device->BufferMap, buffer->id, buffer);
if(err != AL_NO_ERROR)
{
FreeThunkEntry(buffer->id);
memset(buffer, 0, sizeof(ALbuffer));
free(buffer);
alDeleteBuffers(cur, buffers);
SET_ERROR_AND_GOTO(context, err, done);
}
buffers[cur] = buffer->id;
}
done:
ALCcontext_DecRef(context);
}
void ThunkInit(void)
{
RWLockInit(&ThunkLock);
ThunkArraySize = 1;
ThunkArray = calloc(1, ThunkArraySize * sizeof(*ThunkArray));
}
void ThunkInit(void)
{
RWLockInit(&ThunkLock);
ThunkArraySize = 1024;
ThunkArray = al_calloc(16, ThunkArraySize * sizeof(*ThunkArray));
}